Super Slow Motion playback overexposed on computer monitor... at DVinfo.net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony Digital Cinema Camera Systems > Sony NXCAM NEX-FS700 CineAlta

Sony NXCAM NEX-FS700 CineAlta
4K EXMOR sensor with SDI, slow-motion recording.


Reply
 
Thread Tools Search this Thread
Old May 25th, 2014, 07:55 AM   #1
Regular Crew
 
Join Date: Oct 2004
Location: London, Antarctica
Posts: 199
Super Slow Motion playback overexposed on computer monitor...

Hi,

I've only used this camera in super slow mo mode so I've no idea if this is a problem in other modes. I reckon it's a colour space issue so it probably is.

When I record stuff everything looks fine in the monitor, and all the highlights are just clipping in the histogram, but when I dump the material to my Mac and import into VLC or AE I get horrendously overexposed images.

Putting the card back in the camera, it looks fine on the monitor, and looks great on my TV via the HDMI.

What's going on? And what do I need to do to fix this? If this has been covered before then please point me to the appropriate thread.

Cheers! ;-)

Last edited by Karel Bata; May 25th, 2014 at 12:44 PM.
Karel Bata is offline   Reply With Quote
Old May 25th, 2014, 11:24 AM   #2
New Boot
 
Join Date: Jul 2006
Location: Minneapolis, MN
Posts: 23
Re: Super Slow Motion playback overexposed on computer monitor...

Can you post a clip? or screenshots of the difference? Also, the only "IE" I'm aware of is Internet Explorer, so I'm not sure if you meant a different application.

My only thought could be that you're shooting into the 100-109 IRE range (super whites) and maybe whatever you're viewing it in is clipping those. Try putting the clips into Premiere (or whatever editor you use) and putting on a color corrector and bringing your highlight range down to 235 instead of 255. That might bring back some highlight detail.

That said, I don't think that difference would be anything that makes the image go from "fine" to "horrendously overexposed". I'd need to see pictures what what you're referring it.
Josh Becker is offline   Reply With Quote
Old May 25th, 2014, 01:09 PM   #3
Regular Crew
 
Join Date: Oct 2004
Location: London, Antarctica
Posts: 199
Re: Super Slow Motion playback overexposed on computer monitor...

Argh! I meant AE, as in After Effects. Corrected that now.

Here's photos for a comparison. Actually there's more detail visible in the second, but it hasn't come out here. All lost when I import into any application....
Attached Thumbnails
Super Slow Motion playback overexposed on computer monitor...-monitor.jpg   Super Slow Motion playback overexposed on computer monitor...-tv-set.jpg  

Karel Bata is offline   Reply With Quote
Old May 27th, 2014, 02:21 PM   #4
Regular Crew
 
Join Date: Oct 2012
Location: London, United Kingdom
Posts: 45
Re: Super Slow Motion playback overexposed on computer monitor...

Looks like AE is clipping those super whites (the 100-109 IRE range). From what I understand AE doesn't like footage with super whites, it wants everything in the 16-100 range.
__________________
DoP, London, UK
www.colinelves.com
Colin Elves is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony Digital Cinema Camera Systems > Sony NXCAM NEX-FS700 CineAlta

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 05:16 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network